G/TBT/N/USA/1907/Add.1  
 
3 May 2023  
(23-3094) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  3 May 2023, is being circulated at the request of the delegation 
of the United States of America . 
 
_______________  
 
 
Title:  Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New 
Alternatives Policy Program in Refrigeration, Air Conditioning, and Fire Suppression  
 
Reason for Addendum:  
[ ] Comment period changed - date:   
[ ] Notified measure adopted - date:  
[X] Notified measure published - date: 28 April 2023  
[X] Notified measure enters into force - date: 30 May 2023  
[X] Text of final measure available from1:  
https://www.govinfo.gov/content/pkg/FR -2023-04-28/html/2023 -08663.htm  
https://www.govinfo.gov/content/pkg/FR -2023-04-28/pdf/2023 -08663.pdf  
https://members.wto.org/crnattachments/2023/TBT/USA/final_measure/23_09391_00
_e.pdf  
[ ] Notified measure withdrawn or revoked - date:  
Relevant symbol if measure re -notified:   
[ ] Content or scope of notified measure changed  and text available from1:  
New deadline for comments (if applicable):   
[ ] Interpretive guidance issued and text available from1:  
[ ] Other:  
 
Description:  TITLE: Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant 
New Alternatives Policy Program in Refrigeration, Air Conditioning, and Fire Suppression  
AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  
SUMMARY: Pursuant to the U.S. Environmental Protection Agency's Significant New Alternatives 
Policy (SNAP) program , this action lists certain substances as acceptable, subject to use conditions, 
in the refrigeration and air conditioning sector  for chill ers--comfort cooling, residential dehumidifiers, 
residential and light commercial air conditioning and heat pumps, and a substance as acceptable, 
 
1 This information can be provided by including a website address, a pdf attachment, or other 
information on where the text of the final /modified  measure and/or interpretive guidance can be obtained.  G/TBT/N/USA/1907/Add.1  
 
- 2 - 
 
  subject to use conditions and narrowed use limits, in very low temperature refrigeration. Through 
this action,  EPA is incorporating by reference standards which establish requirements for electrical 
air conditioners, heat pumps, and dehumidifiers, laboratory equipment containing refrigerant, safe 
use of flammable refrigerants, and safe design, construction, instal lation, and operation of 
refrigeration systems. Finally, this action lists certain substances as acceptable, subject to use 
conditions, in the fire suppression s ector for certain streaming and total flooding uses.  
DATES: This rule is effective 30 May 2023. The incorporation by reference of certain material listed 
in the rule is approved by the Director of the Federal Register as of 30 May 2023. The incorporation 
by reference of certain other material listed in the rule was approved by the Director of the Federal 
Register as of 11 May 2015 and 7 September 2018.  
This final rule and the notice of proposed rulemaking notified as G/TBT/N/USA/1907  are identified 
by Docket Number EPA -HQ-OAR-2021-0836. The Docket Folder is available on Regulations.gov at 
https://www.regulations.gov/docket/EPA -HQ-OAR-2021-0836/document  and provides access to 
primary and supporting documents as well as comments received. Documents are also accessible 
from Regulations.gov  by searching the Docket Number.  
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